steel
Flat Face Couplers
Flat Face Hydraulic Quick Couplings(Carbon Steel) International Interchange ISO 16028
Hydronex / Flat Face Couplers
STEEL
Flat Face Couplers
Flat Face Hydraulic Quick Couplings(Carbon Steel) International Interchange ISO 16028 Qkpt Series
QKPT Series flat-face couplers combining superior design with knurled grip rings for enhanced handling. Carbon steel construction meets ISO 16028 standards with reliable flat-face technology for zero spillage.
Material
Carbon Steel
Surface finish
Chrome Plated
Application
Industrial machinery, hydraulic systems, equipment requiring frequent disconnections with superior grip design
Flat Face CouplersSTEEL
Flat Face Couplers
FlatFaceHydraulicQuickCouplings(CarbonSteel)InternationalInterchangeISO16028QkptSeries
QKPT Series flat-face couplers combining superior design with knurled grip rings for enhanced handling. Carbon steel construction meets ISO 16028 standards with reliable flat-face technology for zero spillage.
Material: Carbon Steel;
Surface Treat: Chrome Plated;
Application: Industrial machinery, hydraulic systems, equipment requiring frequent disconnections with superior grip design
Technical Data
Body Size (in)
Specifications
1/4", 3/8", 1/2", 3/4", 1"
Rated Pressure (Bar)
350, 300, 300, 250, 250
Key Features
Flat-face design with zero fluid loss
Knurled grip rings for superior handling
ISO 16028 international compatibility
Carbon steel robust construction
Quick release mechanism
Reliable poppet valve
Chrome plated corrosion protection
Enhanced ergonomic design
Specifications
Series
QKPT
Design
Flat-Face with Knurled Rings
Material
Carbon Steel
Standard
ISO 16028
Applications
Machinery requiring frequent disconnections
Industrial hydraulic applications
Equipment with high usability demands
Professional industrial settings
Machinery requiring frequent disconnections
Industrial hydraulic applications
Equipment with high usability demands
Professional industrial settings
Specification Details
| Body Size (in) | Rated Pressure (Bar) | Material | Standard Seal Material | Temperature Range (Std Seals) |
|---|---|---|---|---|
| 1/4" | 300 | Carbon Steel | NBR | -20°C to +125°C |
| 3/8" | 250 | Carbon Steel | NBR | -20°C to +125°C |
| 1/2" | 200 | Carbon Steel | NBR | -20°C to +125°C |
| 3/4" | 200 | Carbon Steel | NBR | -20°C to +125°C |
| 1" | 200 | Carbon Steel | NBR | -20°C to +125°C |
Couplers Female Thread / Female
| Metric | Imperial | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Part No. | Thread Size | Body Size | Overall Length (mm) | Hex Size (mm) | Largest Diameter (mm) | Part No. | Thread Size | Body Size | Overall Length (inch) | Hex Size (inch) | Largest Diameter (inch) |
| QKPT 02-02SF | G1/4 | 1/4" | 48 | 24 | 28 | QKPT 02-N02SF | NPT1/4 | 1/4" | 1.88 | 0.94 | 1.1 |
| QKPT 03-03SF | G3/8 | 3/8" | 65 | 27 | 32 | QKPT 03-N03SF | NPT3/8 | 3/8" | 2.55 | 1.06 | 1.25 |
| QKPT 03-04SF | G1/2 | 3/8" | 70 | 27 | 32 | QKPT 03-N04SF | NPT1/2 | 3/8" | 2.75 | 1.06 | 1.25 |
| QKPT 04-04SF | G1/2 | 1/2" | 79 | 36 | 40 | QKPT 04-N04SF | NPT1/2 | 1/2" | 3.11 | 1.41 | 1.57 |
| QKPT 04-06SF | G3/4 | 1/2" | 79 | 36 | 40 | QKPT 04-N06SF | NPT3/4 | 1/2" | 3.11 | 1.41 | 1.57 |
| QKPT 06-06SF | G3/4 | 3/4" | 79 | 36 | 41 | QKPT 06-N06SF | NPT3/4 | 3/4" | 3.11 | 1.41 | 1.63 |
| QKPT 08-08SF | G1 | 1" | 93 | 45 | 48 | QKPT 08-N08SF | NPT1 | 1" | 3.66 | 1.77 | 1.88 |
Nipple Female Thread / Male
| Metric | Imperial | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Part No. | Thread Size | Body Size | Overall Length (mm) | Exposed Length (mm) | Hex Size (mm) | Largest Diameter (mm) | Part No. | Thread Size | Body Size | Overall Length (in) | Exposed Length (in) | Hex Size (in) |
| QKPT 02-02PF | G1/4 | 1/4" | 48 | 35 | 22 | 24 | QKPT 02-N02PF | NPT1/4 | 1/4" | 1.88 | 1.37 | 0.86 |
| QKPT 03-03PF | G3/8 | 3/8" | 60 | 43 | 24 | 26 | QKPT 03-N03PF | NPT3/8 | 3/8" | 2.36 | 1.69 | 0.94 |
| QKPT 03-04PF | G1/2 | 3/8" | 63 | 46 | 27 | 29 | QKPT 03-N04PF | NPT1/2 | 3/8" | 2.48 | 1.81 | 1.06 |
| QKPT 04-04PF | G1/2 | 1/2" | 70 | 53 | 32 | 35 | QKPT 04-N04PF | NPT1/2 | 1/2" | 2.77 | 2.08 | 1.25 |
| QKPT 04-06PF | G3/4 | 1/2" | 70 | 53 | 32 | 35 | QKPT 04-N06PF | NPT3/4 | 1/2" | 2.77 | 2.08 | 1.25 |
| QKPT 06-06PF | G3/4 | 3/4" | 70 | 53 | 36 | 38 | QKPT 06-N06PF | NPT3/4 | 3/4" | 2.77 | 2.08 | 1.41 |
| QKPT 08-08PF | G1 | 1" | 83 | 59 | 45 | 48 | QKPT 08-N08PF | NPT1 | 1" | 3.27 | 2.32 | 1.77 |
Performance Specifications
| Size | Working Pressure@ 0.2 MPa pressure drop | Flow Rate | Burst Pressures | Force to Connect | |||
|---|---|---|---|---|---|---|---|
| mm | inch. | MPa (PSI) | l/min (GPM) | MPa (PSI) | MPa (PSI) | MPa (PSI) | N |
| 3.2 | 1/8" | 35 (5000) | 12 (3.2) | 170 (24200) | 140 (20000) | 180 (25700) | 105 |
| 6.3 | 1/4" | 35 (5000) | 25 (6.6) | 170 (24200) | 140 (20000) | 180 (25700) | 110 |
| 10 | 3/8" | 35 (5000) | 50 (13.2) | 170 (24200) | 140 (20000) | 170 (24200) | 150 |
| 12.5 | 1/2" | 35 (5000) | 110 (29) | 140 (20000) | 140 (20000) | 170 (24200) | 210 |
| 16 | 5/8" | 35 (5000) | 125 (33) | 140 (20000) | 140 (20000) | 140 (20000) | 205 |
| 19 | 3/4" | 35 (5000) | 160 (42.4) | 140 (20000) | 140 (20000) | 140 (20000) | 215 |
| 25 | 1" | 35 (5000) | 230 (60.7) | 140 (20000) | 140 (20000) | 170 (24200) | 280 |
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